import Vue from 'vue'

let id = 0;

const createElm = function() {
  const elm = document.createElement('div');

  elm.id = 'app' + ++id;
  document.body.appendChild(elm);

  return elm;
};

export default {
  // 创建一个测试组件
  createTest: function(name, props) {
    const template = '<div>' + '<' + name + ' v-ref:child></' + name + '></div>'
    const elm = createElm();
    const comp = new Vue({
      template: template
    })
    comp.$mount(elm)
    const vm = comp.$refs.child
    Object.assign(vm, props)
    return vm
  },

  // 删除一个组件
  destroyVM: function(vm) {
    vm.$destroy && vm.$destroy();
    vm.$el &&
    vm.$el.parentNode &&
    vm.$el.parentNode.removeChild(vm.$el);
  }
}
